Inhibition of Water extract from Jiangtang Decoction on inflammation in KK-Ay mice by PI3K/Akt/NF-κB signaling pathway
10.7501/j.issn.1674-6376.2017.10.005
- VernacularTitle:中药降糖复方水提物通过PI3K/Akt/NF-κB信号通路抑制KK-Ay小鼠糖尿病肾病炎症
- Author:
ni Jin HONG
1
;
wei Wei LI
;
Ning ZHANG
;
Hong FU
;
mei Xue WANG
Author Information
1. 北京大学第一医院中西医结合研究室
- Keywords:
Jiangtang Decoction;
water extract;
KK-Ay mice;
type 2 diabetes;
diabetic nephropathy;
inflammation factor;
PI3K/Akt/NF-κB
- From:
Drug Evaluation Research
2017;40(10):1389-1396
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the effect and mechanism of Water extract from Jiangtang Decoction (WEJTD) on diabetes mellitus and diabetic nephropathy (DN) in spontaneous type 2 diabetes mellitus model KK-Ay mice.Methods Totally 50 KK-Ay mice were randomly divided into five groups:model group,metformin (positive drug,250 mg/kg) group,WEJTD low,medium and high dose (2,4,and 8 g/kg) group,with 10 C57BL/6J mice as normal group.The relative drugs were ig administered once a day for 12 weeks,and mice in control group and model group were perfused with distilled water of equal volume.After 12 weeks' oral administration,mice were put into metabolism cages,and the food-intake,water-intake and urine volume were calculated and collected.Blood were collected to detect the concentration of IL-6,ICAM-1 and TNF-α.Then mice were executed,and HE staining and PASM staining were used to check the effect of WEJTD on kidney.Western blotting and qRT-PCR were used to detect the concentration of PI3K,Akt,NF-κB,IL-6,ICAM-1 and TNF-α in kidney.Results WEJTD can alleviate the symptoms of diabetes,such as food ration,polydipsia and polyuria (P ＜ 0.05,0.01,and 0.001);Relief the pathological changes of kidney and significantly decreased glycogen deposition (P ＜ 0.001),down-regulate the increase of IL-6,ICAM-1 and TNF-α in serum and kidney (P ＜ 0.05,0.01 and 0.001),up-regulate the phosphorylation of PI3K and Akt (P ＜ 0.05,0.01,and 0.001),and inhibit the phosphorylation of NF-κB (P ＜ 0.001).Conclusion WEJTD had positive effects on kidney morphology of KK-Ay,and the underlying mechanism might be related to the regulation of PI3K-Akt and NF-κB-mediated inflammation.
